Multifunctional curtain wall decorative plate at roof wall expansion joint

Abstract

The application discloses a multifunctional curtain wall decorative plate at a roof wall expansion joint, relates to the technical field of expansion joint structures, and comprises a plurality of supporting mechanisms, which are horizontally and intervally arranged on the side wall of a main building wall body, each supporting mechanism comprising a fixed plate, a first steel square channel and a second steel square channel, the fixed plate being fixedly connected to the side wall of the main building wall body, one end of the first steel square channel being fixedly connected with the fixed plate and the other end being fixedly connected with the second steel square channel. The sealing effect of the expansion joint is improved by the lower adhesive strip in cooperation with the upper adhesive strip and the lower steel plate, the spreading or transmission of flames, smoke and heat in the air interlayer is prevented, the lower part of the glass curtain wall is treated by the aluminum plate, the appearance is enhanced, the expansion joint is protected, the sealing property of the expansion joint is enhanced, the construction is simple, the waterproof effect is good, and the purpose of aging resistance is achieved, the structure is also beautiful, easy to maintain and the like, and is suitable for the expansion joint at a parapet wall of a podium roof of various building types.

Description

Technical Field

[0001] This invention relates to the field of expansion joint structure technology, and in particular to a multifunctional curtain wall decorative panel for roof expansion joints. Background Technology

[0002] In modern architecture, the parapet wall of a podium roof is a common structural element. Due to factors such as thermal expansion and contraction and earthquakes, expansion joints often exist between the parapet wall and the podium roof. These expansion joints effectively reduce structural damage caused by building deformation, but they also introduce challenges related to waterproofing and finishing. Meanwhile, curtain walls, as a key exterior decorative element showcasing modernity and technological sophistication in architecture, can, through carefully designed details, not only meet diverse aesthetic requirements but also fulfill specific functional needs.

[0003] In situations where expansion joints are located between the podium and the main building, and are accompanied by a curtain wall structure, attention to the details of edge finishing and the overall functionality of the expansion joints is crucial for preventing rainwater from seeping into the expansion joints between the buildings and ensuring the integrity of the building's functionality. Traditional waterproofing and edge finishing methods often suffer from problems such as complex construction, high construction costs, and susceptibility to aging. At the same time, the sealing performance of expansion joints is poor, making them susceptible to rainwater erosion. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a curtain wall decorative panel that is simple to construct, has good waterproof effect, is resistant to aging, is beautiful, easy to maintain, and has good waterproof performance for use at roof wall expansion joints.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multifunctional curtain wall decorative panel for roof expansion joints includes:

[0007] Multiple support mechanisms are arranged horizontally at intervals on the side wall of the main building. Each support mechanism includes a fixed plate, a first steel square tube, and a second steel square tube. The fixed plate is fixedly connected to the side wall of the main building. One end of the first steel square tube is fixedly connected to the fixed plate, and the other end is fixedly connected to the second steel square tube. The second steel square tube is located on the side of the parapet wall away from the main building wall. The second steel square tubes of each support mechanism are arranged horizontally along the parapet wall and connected end to end. A rubber strip is provided between the second steel square tube and the parapet wall.

[0008] Multiple columns, each fixedly connected to a fixed plate, with crossbeams between the columns, and glass curtain walls on the outside of the columns and crossbeams;

[0009] The aluminum plate is fixedly connected at the top to the bottom of the glass curtain wall and at the bottom to the bottom of the second steel square tube to cover the expansion joint between the main building wall and the parapet wall.

[0010] And the sealing structure is arranged in the expansion joint, the sealing structure comprises two first fixed parts, a lower rubber strip and two backing plates, the two first fixed parts are fixedly connected to the main building wall and the parapet side wall respectively, and each backing plate is located between a first fixed part and the wall body, a fixed port is arranged on each first fixed part, both end portions of the lower rubber strip are provided with rubber strip insertion portions, the bottom of each backing plate is provided with a hook-shaped insertion portion, each rubber strip insertion portion and a hook-shaped insertion portion are tightly matched and inserted into a fixed port, and the contact position of each rubber strip insertion portion and a hook-shaped insertion portion is inclined, so that the thickness of the portion of the rubber strip insertion portion located inside the fixed port is greater than that of the portion located outside the fixed port, so that the rubber strip insertion portion cannot be separated from the fixed port.

[0011] Further, the inner walls on both sides of the fixed port are provided with hooks, and the side of the rubber strip insertion portion and the hook-shaped insertion portion away from each other is provided with a clamping groove matched with the hooks.

[0012] Further, the side of the backing plate close to the wall body is provided with a pad at the bottom, and the pad is protruding

[0013] Further, the sealing structure further comprises a lower steel plate and an upper rubber strip, the top of the first fixed part is provided with a mounting port, and the two ends of the upper rubber strip are respectively inserted into the mounting ports of the two first fixed parts, the two ends of the lower steel plate are fixedly connected with the main building wall and the parapet side wall, and the lower surface of the lower steel plate is matched with the upper surface of the end portion of the upper rubber strip, so that the end portion of the upper rubber strip is fixed in the mounting port, and the middle portion of the lower steel plate is protruding upward.

[0014] Further, the upper steel plate is fixedly connected to the cross beam, and the bottom of the upper steel plate is fixedly connected with the main building wall.

[0015] Further, the fixed plate is fixedly connected with the main building wall through an anchor bolt, and the angle code is fixedly connected to the fixed plate, and the vertical column is fixedly connected with the fixed plate through the angle code.

[0016] Further, the side of the cross beam is provided with a connecting piece, the upper end of the aluminum plate is fixedly connected with the cross beam through the connecting piece, the connecting piece is located at the bottom of the glass curtain wall, and the sealing rubber is arranged between the glass curtain wall and the aluminum plate.

[0017] Further, the outer side of the glass curtain wall is provided with a cover, and the cover extends downward to the outer side of the aluminum plate.

[0018] Further, the first steel square pipe is located above the parapet wall, and the first steel square pipe is L-shaped, one end of the first steel square pipe faces downward and is fixedly connected with the top of the second steel square pipe, the side of the second steel square pipe and the side of the parapet wall are both fixedly connected with a profile, a rubber gasket is arranged between the profile and the parapet wall and the second steel square pipe, mounting ports are formed in the two profiles, and the two ends of the rubber strip are fixedly connected in the mounting ports.

[0019] Furthermore, thermal insulation rock wool strips are provided on the inner side of the aluminum plate and between the two first fasteners, and single-sided aluminum foil is provided on the outer side of the thermal insulation rock wool strips.

[0020] The beneficial effects of this invention are as follows:

[0021] In this invention, the multifunctional curtain wall decorative panel at the roof wall expansion joint is fixed between the main building wall and the parapet wall by the first fastener. Since the hook-shaped insertion part of the pad plate is stuck in the fixing hole and the pad is subjected to the squeezing force, the hook-shaped insertion part further squeezes and fixes the insertion part of the pad plate. Therefore, the lower pad plate is firmly fixed to the first fastener, ensuring its sealing performance. The upper pad plate cannot be separated from the first fastener through the lower steel plate, which improves the sealing effect of the expansion joint. The lower pad plate, together with the upper pad plate and the lower steel plate, can prevent flames, smoke and heat from spreading or being transmitted in the air gap.

[0022] Columns and beams are fixed to the side walls of the main building, thus fixing the glass curtain wall to the outside of the main building wall. Aluminum panels are fixed by the first and second steel square tubes. The aluminum panels and the parapet wall are sealed with rubber strips to prevent external rainwater from entering. Sealant is applied between the upper part of the aluminum panels and the glass curtain wall for waterproofing. The lower part of the glass curtain wall is then finished, which enhances the aesthetics and protects the expansion joints, improving their sealing performance.

[0023] The multi-functional curtain wall decorative panel at the expansion joint of the roof wall uses corrosion-resistant and aging-resistant steel square tubes and aluminum plates as curtain wall edge trims, and waterproof strips as waterproof layers, achieving the goals of simple construction, good waterproof effect, and aging resistance. At the same time, the structure also has the advantages of being beautiful and easy to maintain, and is suitable for the expansion joints of the parapet walls of podium roofs of various building types. Attached Figure Description

[0024] Figure 1 This is a cross-sectional structural schematic diagram of a multifunctional curtain wall decorative panel at the expansion joint of a roof wall proposed in this invention.

[0025] Figure 2 for Figure 1 A partially enlarged structural diagram;

[0026] Figure 3 for Figure 2 A magnified structural diagram of part A;

[0027] Figure 4 for Figure 3 A magnified structural diagram of part B.

[0028] In the figure: 1 main building wall, 2 parapet, 3 fixed plate, 4 upper steel plate, 5 cross beam, 6 buckle cover, 7 glass curtain wall, 8 stand column, 9 sealing glue, 10 thermal insulation layer rock wool belt, 11 corner clamp, 12 aluminum plate, 13 first steel square, 14 second steel square, 15 first fixing part, 1501 fixed port, 16 lower rubber strip, 17 lower steel plate, 18 rubber strip, 19 second fixing part, 20 upper rubber strip, 21 pad plate, 2101 pad block. DETAILED DESCRIPTION

[0029] The technical solutions of the patent will be further described in detail below in combination with specific embodiments.

[0030] The embodiments of the patent will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the patent, and cannot be understood as a limitation on the patent.

[0031] In the description of the patent, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the patent and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the patent.

[0032] In the description of the patent, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meanings of the above terms in the patent can be understood according to the specific circumstances.

[0033] Reference Figures 1-4 A multifunctional curtain wall decorative plate at a roof wall expansion joint, applied to waterproof protection of the expansion joint between the main building wall and the parapet, in order to enhance the appearance and waterproof performance of the expansion joint.

[0034] The multifunctional curtain wall decorative plate at the roof wall expansion joint comprises a plurality of supporting mechanisms, a plurality of stand columns 8, an aluminum plate 12, and a sealing structure.

[0035] The support mechanism is arranged transversely and spaced on the side wall of the main building wall 1, each support mechanism comprises a galvanized fixed plate 3, a first galvanized steel square tube 13 and a second galvanized steel square tube 14, the fixed plate 3 is fixedly connected to the side wall of the main building wall 1 by chemical anchor bolt, one end of the first steel square tube 13 is fixedly connected with the fixed plate 3, the other end is fixedly connected with the second steel square tube 14, the first steel square tube 13 is located above the parapet wall 2, and the first steel square tube 13 is L-shaped, one end of the first steel square tube 13 downwardly and fixedly connected with the top of the second steel square tube 14, the second steel square tube 14 is located on the side of the parapet wall 2 away from the main building wall 1, the second steel square tubes 14 of the support mechanisms are arranged transversely and connected at the head and tail along the parapet wall 2, the second steel square tube 14 is fixedly connected with one side of the parapet wall 2 and one side of the second steel square tube 14, respectively, rubber pads are arranged between the second steel square tube 14 and the parapet wall 2 and the second steel square tube 14, installation openings are formed in the two rubber pads, and the two ends of the rubber strip 18 are fixedly connected in the installation openings, respectively. The organ pipe rubber strip 18 seals and softly connects the parapet wall 2 and the second steel square tube 14, thereby preventing external rainwater from entering.

[0036] A plurality of aluminum alloy columns 8, each column 8 is fixedly connected to a fixed plate 3 by a thick galvanized steel corner code 11, and a cross beam 5 is arranged between the columns 8, the columns 8 and the cross beams 5 form a curtain wall keel, hollow argon-filled tempered double super white glass curtain walls 7 are arranged on the outer sides of the columns 8 and the cross beams 5, a galvanized upper steel plate 4 is fixedly connected to one side of the cross beam 5, the bottom of the upper steel plate 4 is fixedly connected with the main building wall 1, and a connecting piece is arranged on the other side of the cross beam 5, an aluminum plate 12 is fixedly connected to the cross beam 5 through the connecting piece, the connecting piece is located at the bottom of the glass curtain wall 7, and a sealing glue 9 is arranged between the glass curtain wall 7 and the aluminum plate 12, so that the waterproof function of the glass curtain wall 7 is improved, a complete curtain wall closing and plugging structure is formed, and a decoration and waterproof effect is achieved, the bottom end of the aluminum plate 12 is fixedly connected with the bottom of the second steel square tube 14, the aluminum plate 12 is bent, so as to shield the expansion joint between the main building wall 1 and the parapet wall 2, and the inner side of the aluminum plate 12 is attached to the first steel square tube 13, the transverse part of the aluminum plate 12 attached to the first steel square tube 13 has a certain angle of inclined slope, so as to play a drainage role, and a heat preservation rock wool strip 10 is arranged on the inner side of the aluminum plate 12, a single-sided aluminum foil is arranged on the outer side of the heat preservation rock wool strip 10, and an aluminum alloy decorative cover 6 is arranged on the outer side of the glass curtain wall 7, the cover 6 extends downward to the outer side of the aluminum plate 12, the gap between the glass curtain walls 7 can be shielded through the cover 6, and the aesthetic effect is improved.

[0037] The sealing structure is arranged in the expansion joint, and the sealing structure comprises two first fixing members 15, a lower rubber strip 16, a lower steel plate 17, an upper rubber strip 20 and two rubber pad plates 21. The first fixing member 15 is an aluminum alloy profile, and the lower rubber strip 16 and the upper rubber strip 20 are both organ rubber strips, which can well meet the functional requirements of the expansion joint. The two first fixing members 15 are respectively fixedly connected to the side walls of the main building wall 1 and the parapet wall 2, and each pad plate 21 is located between a first fixing member 15 and the wall body. The bottom of each first fixing member 15 is provided with a fixing opening 1501, the two end portions of the lower rubber strip 16 are provided with rubber strip insertion portions, and the bottom of each pad plate 21 is provided with a hook-shaped insertion portion. Each rubber strip insertion portion and a hook-shaped insertion portion are tightly matched and inserted into a fixing opening 1501, and the contact position of each rubber strip insertion portion and a hook-shaped insertion portion is inclined, so that the thickness of the part of the rubber strip insertion portion located inside the fixing opening 1501 is greater than the part located outside the fixing opening 1501, so that the rubber strip insertion portion is clamped in the fixing opening 1501 by the hook-shaped insertion portion, and the lower rubber strip 16 cannot be separated from the first fixing member 15. The inner walls on both sides of the fixing opening 1501 are provided with hooks, and the side of the rubber strip insertion portion and the hook-shaped insertion portion away from each other is provided with a clamping groove matched with the hooks. The rubber strip insertion portion and the hook-shaped insertion portion are inserted into the fixing opening 1501 through the hooks and the clamping grooves and cannot be easily separated from the fixing opening 1501, thereby improving the stability of the lower rubber strip 16 after installation. In addition, the side of the pad plate 21 close to the wall body is provided with a pad block 2101 on the bottom, and the pad block 2101 is protruding. When the pad plate 21 is fixedly installed on the wall body by the first fixing member 15, the protruding pad block 2101 contacts the wall body and is pressed, so that the pad plate 21 is stressed and deformed to the side of the lower rubber strip 16. Therefore, the rubber strip insertion portion of the lower rubber strip 16 is pressed and fixed, so that it is firmly fixed in the fixing opening 1501, thereby further improving the stability of the installation of the lower rubber strip 16, avoiding the falling of the lower rubber strip 16, and improving the sealing effect between the expansion joints.

[0038] The top of the first fixing member 15 is provided with an installation opening, the two ends of the upper rubber strip 20 are respectively inserted into the installation openings of the two first fixing members 15, the two ends of the galvanized lower steel plate 17 are respectively fixedly connected with the main building wall 1 and the parapet wall 2 side wall, and the lower surface of the lower steel plate 17 is matched with the end surface of the upper rubber strip 20, so that the end of the upper rubber strip 20 is fixed in the installation opening, and the upper rubber strip 20 cannot be separated from the first fixing member 15. The middle part of the lower steel plate 17 is protruding upward, thereby adapting to the deformation of the expansion joint. The lower rubber strip 16 cooperates with the upper rubber strip 20 and the lower steel plate 17 to prevent the spread or transmission of flames, smoke and heat in the air layer. The two first fixing members 15 are provided with a heat preservation rock wool belt 10, and the outer side of the heat preservation rock wool belt 10 is provided with a single-sided aluminum foil, thereby further preventing the transmission of flames, smoke and heat.

[0039] The working principle of the multifunctional curtain wall decorative plate at the roof wall expansion joint is as follows: during installation, first, the expansion joint between the main building wall 1 and the parapet wall 2 is treated to ensure the flatness of the base surface, then the glue strip insertion part of the lower glue strip 16 is inserted into the hook-shaped insertion part of the pad 21 and inserted into the fixed port 1501, then the first fixing part 15 and the pad 21 are fixed on the wall by the anchor bolt, at this time, the lower glue strip 16 is fixed between the main building wall 1 and the parapet wall 2, and the pad 21 cannot move because the first fixing part 15 presses and fixes the pad 21 on the wall, so that the hook-shaped insertion part clamps the glue strip insertion part in the fixed port 1501, and the pad 2101 is pressed to further press and fix the glue strip insertion part by the hook-shaped insertion part, so as to ensure the firm fixing between the lower glue strip 16 and the first fixing part 15 and ensure the sealing property, then the two ends of the upper glue strip 20 are inserted into the installation port of the first fixing part 15, and finally the lower steel plate 17 is fixed and installed between the main building wall 1 and the parapet wall 2, the lower surface of the lower steel plate 17 is attached to the end surface of the upper glue strip 20, so that the end of the upper glue strip 20 is fixed in the installation port and the upper glue strip 20 cannot be separated from the first fixing part 15;

[0040] Then the fixed plate 3 is fixed on the side wall of the main building wall 1 by the chemical anchor bolt, the first steel square tube 13 is fixed on the fixed plate 3, the second steel square tube 14 is fixed at the other end of the first steel square tube 13, the second steel square tubes 14 are connected in a head-to-tail mode, the profile is fixed on one side of the second steel square tube 14 and one side of the parapet wall 2, and the rubber gasket is arranged between the profile, the parapet wall 2 and the second steel square tube 14, then the two ends of the glue strip 18 are inserted into the installation port for fixation, and the glue strip 18 seals and softly connects the parapet wall 2 and the second steel square tube 14, so as to prevent external rainwater from entering.

[0041] Then the column 8 is fixed on the fixed plate 3 by the angle code 11, the cross beam 5 is fixed between the columns 8, then the glass curtain wall 7 is fixed outside the columns 8 and the cross beam 5, the upper steel plate 4 is fixed on one side of the cross beam 5, the bottom of the upper steel plate 4 is fixed on the main building wall 1, the connecting piece is fixed on the other side of the cross beam 5, the upper end of the aluminum plate 12 is fixed on the connecting piece, then the sealing glue 9 is arranged between the glass curtain wall 7 and the aluminum plate 12, and finally the lower end of the aluminum plate 12 is fixed on the bottom of the second steel square tube 14, so that the aluminum plate 12 shields the expansion joint between the main building wall 1 and the parapet wall 2 and protects the expansion joint.

[0042] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A multifunctional curtain wall decorative plate at a roof-wall expansion joint, characterized in that, The utility model relates to a kind of supporting structure of main building wall and parapet, including: Multiple support mechanisms, each support mechanism is transversely spaced arrangement and is arranged on the side wall of main building wall (1), each support mechanism includes fixed plate (3), first steel square (13) and second steel square (14), the fixed plate (3) is fixedly connected on the side wall of main building wall (1), one end of the first steel square (13) is fixedly connected with the fixed plate (3), the other end is fixedly connected with the second steel square (14), the second steel square (14) is located on the side of parapet (2) away from main building wall (1), the second steel square (14) of each support mechanism is arranged along the parapet (2) transversely and is connected head to tail, and adhesive tape (18) is arranged between the second steel square (14) and the parapet (2); Multiple columns (8), each column (8) is fixedly connected on a fixed plate (3), and a crossbeam (5) is arranged between each column (8), and the outer side of the column (8) and the crossbeam (5) is provided with glass curtain wall (7); Aluminum plate (12), the top end is fixedly connected with the bottom of glass curtain wall (7), and the bottom is fixedly connected with the bottom of second steel square (14), to shield the expansion joint between main building wall (1) and parapet (2); And sealing structure is arranged in the expansion joint, the sealing structure includes two first fixed parts (15), lower adhesive tape (16) and two backing plates (21), two first fixed parts (15) are fixedly connected on the side wall of main building wall (1) and parapet (2) respectively, and each backing plate (21) is located between a first fixed part (15) and wall, a fixed mouth (1501) is arranged on each first fixed part (15), both ends of the lower adhesive tape (16) are provided with adhesive tape insertion part, the bottom of two backing plates (21) is provided with hook-shaped insertion part, each adhesive tape insertion part is inserted into a fixed mouth (1501) in close-fitting cooperation with a hook-shaped insertion part, and the contact part of each adhesive tape insertion part and hook-shaped insertion part is inclined, so that the thickness of the part of adhesive tape insertion part inside the fixed mouth (1501) is greater than the part outside the fixed mouth (1501), so that the adhesive tape insertion part cannot be separated from the fixed mouth (1501).

2. The multi-functional curtain wall decorative plate at the roof-wall expansion joint according to claim 1, characterized in that: The inner wall of both sides of the fixed mouth (1501) is provided with a hook, and the side of the adhesive tape insertion part and the hook-shaped insertion part away from each other is provided with a clamping groove matched with the hook.

3. The multi-functional curtain wall decorative plate at the roof-wall expansion joint according to claim 1, characterized in that: The side bottom of the backing plate (21) close to wall is provided with cushion block (2101), and the cushion block (2101) is convex.

4. The multi-functional curtain wall decorative plate at the roof-wall expansion joint according to claim 1, characterized in that: The sealing structure further comprises a lower steel plate (17) and an upper rubber strip (20), the top of the first fixing member (15) is provided with a mounting port, both ends of the upper rubber strip (20) are respectively inserted into the mounting ports of the two first fixing members (15), both ends of the lower steel plate (17) are fixedly connected with the sidewalls of the main building wall (1) and the parapet wall (2), and the lower surface of the lower steel plate (17) is attached to the upper surface of the end of the upper rubber strip (20), so that the end of the upper rubber strip (20) is fixed in the mounting port, and the middle part of the lower steel plate (17) is upwardly convex.

5. The multi-functional curtain wall decorative plate at the roof-wall expansion joint according to claim 1, characterized in that: The upper steel plate (4) is fixedly connected to the beam (5), and the bottom of the upper steel plate (4) is fixedly connected with the main building wall (1).

6. The multi-functional curtain wall decorative plate at the roof-wall expansion joint according to claim 1, characterized in that: The fixed plate (3) is fixedly connected with the main building wall (1) through an anchor bolt, and the angle code (11) is fixedly connected to the fixed plate (3), and the stand column (8) is fixedly connected with the fixed plate (3) through the angle code (11).

7. The multi-functional curtain wall decorative plate at the roof-wall expansion joint according to claim 1, characterized in that: One side of the beam (5) is provided with a connecting piece, the upper end of the aluminum plate (12) is fixedly connected with the beam (5) through the connecting piece, the connecting piece is located at the bottom of the glass curtain wall (7), and the sealing rubber (9) is arranged between the glass curtain wall (7) and the aluminum plate (12).

8. The multi-functional curtain wall decorative plate at the roof-wall expansion joint according to claim 7, characterized in that: The outer side of the glass curtain wall (7) is provided with a cover (6), and the cover (6) extends downward to the outer side of the aluminum plate (12).

9. The multi-functional curtain wall cladding panel at the expansion joint of a roof wall according to claim 1, characterized in that: The first steel square duct (13) is located above the parapet wall (2), and the first steel square duct (13) is L-shaped, one end of the first steel square duct (13) downwardly extends and is fixedly connected with the top of the second steel square duct (14), one side of the second steel square duct (14) and one side of the parapet wall (2) are both fixedly connected with a profile, a rubber gasket is arranged between the profile and the parapet wall (2) and the second steel square duct (14), mounting ports are formed in the two profiles, and both ends of the rubber strip (18) are fixedly connected in the mounting ports.

10. The multi-functional curtain wall decorative plate at the expansion joint of a roof wall according to any one of claims 1-9, characterized in that: The inner side of the aluminum plate (12) and the two first fixing members (15) are both provided with a heat preservation rock wool belt (10), and the outer side of the heat preservation rock wool belt (10) is provided with a single-sided aluminum foil.

Images